Amesoeurs was a French post-punk/post-black metal band. A side project of Neige of Alcest, the group was formed in the summer of 2004 in Bagnols-sur-Cèze with the purpose of creating music that "reflects the dark side of the industrial era and modern civilization".
Teyssier initially left the band shortly after its creation, but returned in 2008, while Winterhalter, who would go on to join both Alcest and Les Discrets, joined in 2007. They disbanded in 2009.